single_slot.html

<!DOCTYPE HTML>
<html lang="en-us">
<head>
    <meta http-equiv="Content-type" content="text/html; charset=utf-8">
    <title>Single slot</title>
    <script async='async' src='https://www.googletagservices.com/tag/js/gpt.js'></script>

    <script>
        var googletag = googletag || {};
        googletag.cmd = googletag.cmd || [];
    </script>

    <script>
        googletag.cmd.push(function() {
            googletag.defineSlot('/46362926/test_slot1', [240, 400], 'div-gpt-ad-1485099531634-0').addService(googletag.pubads());
            googletag.pubads().enableSingleRequest();
            googletag.enableServices();
        });
    </script>
</head>

<body>
    <!-- /46362926/test_slot1 -->
    <div id='div-gpt-ad-1485099531634-0' style='height:400px; width:240px;'>
        <script>
            googletag.cmd.push(function() { googletag.display('div-gpt-ad-1485099531634-0'); });
        </script>
    </div>
</body
</html>